feat(selection): separate selection geometry from image content processing

- Introduced a new design for selection rasterization that decouples the selection geometry from the image content, ensuring that the SelectionMask is independent of the source image's alpha and color.
- Updated the `rasterize_selection_path` function to only accept selection paths and image dimensions, removing parameters related to source alpha and alpha thresholds.
- Implemented a new approach for handling selection paths using non-zero winding fill, ensuring overlapping areas are preserved.
- Enhanced performance by utilizing a scanline algorithm for rasterization, significantly reducing processing time for high-resolution images.
- Updated internal documentation and added comprehensive tests to validate the new behavior and performance improvements.
- Ensured backward compatibility by maintaining existing interfaces where necessary while introducing breaking changes in the selection processing logic.

tools/node_assets/validate.py

@@ -10,7 +10,7 @@ sys.path.insert(
     str(next((PROJECT_ROOT / "src" / "anyimage" / "wheels").glob("blendjob-*.whl"))),
 )
 
-from anyimage.common.object import (
+from anyimage.common.material import (
     DEPTH_MATERIAL_NODE_GROUP_NAME,
     IMAGE_MATERIAL_NODE_GROUP_NAME,
 )
@@ -62,7 +62,6 @@ def main():
         "Geometry",
         "Subdivide",
         "Thickness",
-        "Material",
     ]
     assert depth_plane.bl_idname == "GeometryNodeTree"
     assert depth_plane.is_modifier
@@ -70,12 +69,30 @@ def main():
         "Geometry",
         "Subdivide",
         "Thickness",
-        "Depth Amount",
-        "Reference Depth",
+        "Depth Scale",
+        "Base Plane Depth",
         "Uniform Scale",
         "Depth Image",
-        "Material",
     ]
+    depth_panels = [
+        item for item in depth_plane.interface.items_tree if item.item_type == "PANEL"
+    ]
+    assert [panel.name for panel in depth_panels] == ["Options", "Data"]
+    assert [item.name for item in depth_panels[0].interface_items] == [
+        "Base Plane Depth"
+    ]
+    assert [item.name for item in depth_panels[1].interface_items] == [
+        "Uniform Scale",
+        "Depth Image",
+    ]
+    assert all(panel.default_closed for panel in depth_panels)
+    assert all(item.hide_in_modifier for item in depth_panels[1].interface_items)
+    depth_subdivide = next(
+        item
+        for item in depth_plane.interface.items_tree
+        if item.item_type == "SOCKET" and item.name == "Subdivide"
+    )
+    assert depth_subdivide.default_value == 6
     assert image_layer.bl_idname == "ShaderNodeTree"
     assert input_names(image_layer) == [
         "Color",